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Finding the Fourth Proportional to 18,392.76, 27,564.90 and 7,293.39

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Solution

The fourth proportional to 18,392.76, 27,564.90 and 7,293.39 is: 10,930.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,392.76 : 27,564.90 = 7,293.39 : x
  2. Step 2: Convert to fraction form
    18,392.76/27,564.90 = 7,293.39/x
  3. Step 3: Cross multiply
    18,392.76x = 27,564.90 × 7,293.39
  4. Step 4: Simplify right side
    18,392.76x = 201,041,566.01
  5. Step 5: Solve for x
    x = 201,041,566.01/18,392.76
  6. Step 6: Final answer
    x = 10,930.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.